From 10b4dfd8e9ccd7a03df7bb053ee1c644cb37f8ab Mon Sep 17 00:00:00 2001
From: David Beck <david.beck@arm.com>
Date: Wed, 19 Sep 2018 12:03:20 +0100
Subject: IVGCVSW-1897 : build infrastructure for the src/backends folder

Change-Id: I7ebafb675ccc77ad54d1deb01412a8379a5356bb
---
 src/armnn/backends/RefWorkloads/ConvImpl.cpp | 71 ----------------------------
 1 file changed, 71 deletions(-)
 delete mode 100644 src/armnn/backends/RefWorkloads/ConvImpl.cpp

(limited to 'src/armnn/backends/RefWorkloads/ConvImpl.cpp')

diff --git a/src/armnn/backends/RefWorkloads/ConvImpl.cpp b/src/armnn/backends/RefWorkloads/ConvImpl.cpp
deleted file mode 100644
index 8743a2bd0d..0000000000
--- a/src/armnn/backends/RefWorkloads/ConvImpl.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright © 2017 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include "ConvImpl.hpp"
-
-#include <boost/assert.hpp>
-
-#include <cmath>
-#include <limits>
-
-namespace armnn
-{
-
-QuantizedMultiplierSmallerThanOne::QuantizedMultiplierSmallerThanOne(float multiplier)
-{
-    BOOST_ASSERT(multiplier >= 0.0f && multiplier < 1.0f);
-    if (multiplier == 0.0f)
-    {
-        m_Multiplier = 0;
-        m_RightShift = 0;
-    }
-    else
-    {
-        const double q = std::frexp(multiplier, &m_RightShift);
-        m_RightShift = -m_RightShift;
-        int64_t qFixed = static_cast<int64_t>(std::round(q * (1ll << 31)));
-        BOOST_ASSERT(qFixed <= (1ll << 31));
-        if (qFixed == (1ll << 31))
-        {
-            qFixed /= 2;
-            --m_RightShift;
-        }
-        BOOST_ASSERT(m_RightShift >= 0);
-        BOOST_ASSERT(qFixed <= std::numeric_limits<int32_t>::max());
-        m_Multiplier = static_cast<int32_t>(qFixed);
-    }
-}
-
-int32_t QuantizedMultiplierSmallerThanOne::operator*(int32_t rhs) const
-{
-    int32_t x = SaturatingRoundingDoublingHighMul(rhs, m_Multiplier);
-    return RoundingDivideByPOT(x, m_RightShift);
-}
-
-int32_t QuantizedMultiplierSmallerThanOne::SaturatingRoundingDoublingHighMul(int32_t a, int32_t b)
-{
-    // Check for overflow.
-    if (a == b && a == std::numeric_limits<int32_t>::min())
-    {
-        return std::numeric_limits<int32_t>::max();
-    }
-    int64_t a_64(a);
-    int64_t b_64(b);
-    int64_t ab_64 = a_64 * b_64;
-    int32_t nudge = ab_64 >= 0 ? (1 << 30) : (1 - (1 << 30));
-    int32_t ab_x2_high32 = static_cast<std::int32_t>((ab_64 + nudge) / (1ll << 31));
-    return ab_x2_high32;
-}
-
-int32_t QuantizedMultiplierSmallerThanOne::RoundingDivideByPOT(int32_t x, int exponent)
-{
-    BOOST_ASSERT(exponent >= 0 && exponent <= 31);
-    int32_t mask = (1 << exponent) - 1;
-    int32_t remainder = x & mask;
-    int32_t threshold = (mask >> 1) + (x < 0 ? 1 : 0);
-    return (x >> exponent) + (remainder > threshold ? 1 : 0);
-}
-
-} //namespace armnn
-- 
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